139035-70-4 5-(S-Glutathionyl)-2-tert-butylhydroquinone 5GS-Tbhq conjugate Glycine, N-(5-(4-(1,1-dimethylethyl)-2,5-dihydroxyphenyl)-N-L-gamma-glutamyl-L-cysteinyl)- N-(5-(4-(1,1-Dimethylethyl)-2,5-dihydroxyphenyl)-N-L-gamma-glutamyl-L-cysteinyl)glycine